Mathematics, 12.12.2020 16:40 abell23000

Two cars got an oil change at the same auto shop. The shop charges customers for each quart of oil plus a flat fee for labor. The oil change for one car required 5 quarts of oil and cost $21.90. The oil change for the other car required 7 quarts of oil and cost $25.40. How much is the labor fee and how much is each quart of oil?

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Two cars got an oil change at the same auto shop. The shop charges customers for each quart of oil p...